mv_i2c: use structure to replace the direclty define

Add i2c_clk_enable in the cpu specific code, since previous platform it,
while new platform don't need. In the pantheon and armada100 platform,
this function is defined as NULL one.

Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>

1 files changed, 83 insertions, 0 deletions

diff --git a/drivers/i2c/mv_i2c.h b/drivers/i2c/mv_i2c.h
new file mode 100644
index 0000000000..41af0d9bda
--- /dev/null
+++ b/drivers/i2c/mv_i2c.h
@@ -0,0 +1,83 @@
+/*
+ * (C) Copyright 2011
+ * Marvell Inc, <www.marvell.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _MV_I2C_H_
+#define _MV_I2C_H_
+extern void i2c_clk_enable(void);
+
+/* Shall the current transfer have a start/stop condition? */
+#define I2C_COND_NORMAL		0
+#define I2C_COND_START		1
+#define I2C_COND_STOP		2
+
+/* Shall the current transfer be ack/nacked or being waited for it? */
+#define I2C_ACKNAK_WAITACK	1
+#define I2C_ACKNAK_SENDACK	2
+#define I2C_ACKNAK_SENDNAK	4
+
+/* Specify who shall transfer the data (master or slave) */
+#define I2C_READ		0
+#define I2C_WRITE		1
+
+#if (CONFIG_SYS_I2C_SPEED == 400000)
+#define I2C_ICR_INIT	(ICR_FM | ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD \
+		| ICR_SCLE)
+#else
+#define I2C_ICR_INIT	(ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE)
+#endif
+
+#define I2C_ISR_INIT		0x7FF
+/* ----- Control register bits ---------------------------------------- */
+
+#define ICR_START	0x1		/* start bit */
+#define ICR_STOP	0x2		/* stop bit */
+#define ICR_ACKNAK	0x4		/* send ACK(0) or NAK(1) */
+#define ICR_TB		0x8		/* transfer byte bit */
+#define ICR_MA		0x10		/* master abort */
+#define ICR_SCLE	0x20		/* master clock enable, mona SCLEA */
+#define ICR_IUE		0x40		/* unit enable */
+#define ICR_GCD		0x80		/* general call disable */
+#define ICR_ITEIE	0x100		/* enable tx interrupts */
+#define ICR_IRFIE	0x200		/* enable rx interrupts, mona: DRFIE */
+#define ICR_BEIE	0x400		/* enable bus error ints */
+#define ICR_SSDIE	0x800		/* slave STOP detected int enable */
+#define ICR_ALDIE	0x1000		/* enable arbitration interrupt */
+#define ICR_SADIE	0x2000		/* slave address detected int enable */
+#define ICR_UR		0x4000		/* unit reset */
+#define ICR_FM		0x8000		/* Fast Mode */
+
+/* ----- Status register bits ----------------------------------------- */
+
+#define ISR_RWM		0x1		/* read/write mode */
+#define ISR_ACKNAK	0x2		/* ack/nak status */
+#define ISR_UB		0x4		/* unit busy */
+#define ISR_IBB		0x8		/* bus busy */
+#define ISR_SSD		0x10		/* slave stop detected */
+#define ISR_ALD		0x20		/* arbitration loss detected */
+#define ISR_ITE		0x40		/* tx buffer empty */
+#define ISR_IRF		0x80		/* rx buffer full */
+#define ISR_GCAD	0x100		/* general call address detected */
+#define ISR_SAD		0x200		/* slave address detected */
+#define ISR_BED		0x400		/* bus error no ACK/NAK */
+
+#endif